package cn.youruan.demo.excption;


import cn.youruan.demo.common.CustomException;
import cn.youruan.demo.common.R;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.ControllerAdvice;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;

import java.sql.SQLIntegrityConstraintViolationException;

// 全局异常处理,拦截带RestController这个注解的controller
@ControllerAdvice(annotations = {RestController.class,Controller.class})
@ResponseBody
@Slf4j
public class ExceptionHandler {

    /**
     * 异常处理方法
     * @return
     */
    @org.springframework.web.bind.annotation.ExceptionHandler(SQLIntegrityConstraintViolationException.class)
    public R<String> exceptionHandler(SQLIntegrityConstraintViolationException ex) {
        log.error(ex.getMessage());

        if (ex.getMessage().contains("Duplicate entry")){
            String[] split = ex.getMessage().split(" ");
            String msg="用户名"+split[2] +"已存在";
            return R.error(msg);
        }
        return R.error("未知错误");
    }

    /**
     * 全局处理种类关联异常
     * @param ex
     * @return
     */
    @org.springframework.web.bind.annotation.ExceptionHandler(CustomException.class)
    public R<String> exceptionHandler(CustomException ex) {
        log.error(ex.getMessage());
        return R.error(ex.getMessage());
    }

}
